frame-javascript-url-load-event.html

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/embedded-content/the-frame-element/frame-javascript-url-load-event.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<link rel="help" href="https://html.spec.whatwg.org/multipage/#navigate-to-a-javascript:-url">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<body>

<script>

  function navigationTaskRan() {

    if (window.requestIdleCallback)

      return new Promise(resolve => requestIdleCallback(resolve));

    return new Promise(resolve => requestAnimationFrame(_ => requestAnimationFrame(resolve)));

  promise_test(async t => {

    let ran = false;

    window.javascriptURLRan = () => { ran = true; };

    const frame = document.createElement("frame");

    t.add_cleanup(() => frame.remove());

    frame.src = "javascript:parent.javascriptURLRan()";

    const loaded = new Promise(resolve => { frame.onload = resolve; });

    document.body.append(frame);

    await loaded;

    assert_true(ran, "javascript: URL ran");

    frame.onload = t.unreached_func("second load event");

    await navigationTaskRan();

  }, "Inserting a frame with a javascript: URL src fires one load event");

  promise_test(async t => {

    const frame = document.createElement("frame");

    t.add_cleanup(() => frame.remove());

    const loaded = new Promise(resolve => { frame.onload = resolve; });

    document.body.append(frame);

    await loaded;

    frame.onload = t.unreached_func("load event");

    let ran = false;

    window.javascriptURLRan = () => { ran = true; };

    frame.src = "javascript:parent.javascriptURLRan()";

    await navigationTaskRan();

    assert_true(ran, "javascript: URL ran");

  }, "Setting a frame's src to a javascript: URL after insertion does not fire a load event");

</script>